INDEX
In the following index the first reference number refers to the number of the chapter in
which the subject may be found and the second to the section within the chapter.

Abel's lemma: 9.1
Abel's theorem: 9.3, prob. 1
Absolute value of a real number: 2.2
Absolute value of a complex number: 4.4
Absolutely convergent series: 5.3
Absolutely summable family, absolutely
summable subset: 5.3
Adjoint of an operator: 11.5
Algebraic multiplicity of an eigenvalue: 11.4
Amplitude of a complex number: 9.5,

prob. 8
Analytic mapping: 9.3
Approximate solution of a differential

equation: 10.5
Ascoli's theorem: 7.5
At most denumerable set, at most denumer-

able family: 1.9
Axiom of Archimedes: 2.1
Axiom of choice: 1.4
Axiom of nested intervals: 2.1

B
Banach space: 5.1
Basis for the open sets of a metric space: 3.9
Belonging to a set: 1.1
Bergman's kernel: 9.13, prob.
Bessel's inequality: 6.5
Bicontinuous mapping: 3.12
Bijective mapping, bijection: 1.6
Bloch's constant: 10.3, prob. 5
Bolzano's theorem: 3.19
Borel's theorem: 8.14, prob. 4
Borel-Lebesgue axiom: 3.16
Borel-Lebesgue theorem: 3.17
Boundary conditions for a differential

equation: 11.7
Bounded from above, from below (subset

of R): 2.3
Bounded subset of R: 2.3
Bounded real function: 2.3
Bounded set in a metric space: 3.4
Broken line: 5.1, prob. 4
Brouwer's theorem for the plane: 10.2,

prob. 3
Canonical decomposition of a vector
relatively to a hermitian compact
.operator: 11.5
Cantor's triadic set: 4.2, prob. 2 ^
e-Capacity of a set: 3.16, prob. 4
Cartesian product of sets: 1.3
Cauchy's conditions for analytic functions:

9.10
Cauchy criterion for sequences: 3.14
Cauchy criterion for series: 5.2
Cauchy's existence theorem for differential

equations: 10.4
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